George Takei, Mark Hamill, and Ed Wasser provide voices as IR-2 and the robot crew take a look at the Great Attractor, a massive hidden object that is pulling in every nearby galaxy in the local Universe (including our own).

Part Two: The Warm Mission (Sean Astin, Betty White)

It's the series Aint-It-Cool-News calls ''the most (intentionally) hilarious series of educational films you'll find...the pieces carry a Muppets-esque charm.'' Alan Dyer at Discovery.com says it's ''a lot of fun, and breaks the mold for NASA videos.'' Recently a top-10 finalist for ''Best Science/Technology Podcast'' at the 2008 Podcast Awards, IRrelevant Astronomy is packed with CG animation and snarky humor, all wrapped around the latest astronomy news and science from NASA's Spitzer Space Telescope. It's infrared-relevant!